NDLI: Feasibility of Ultra High Resolution Better Than 1mm FWHM of Small Animal PET by Using CdTe Detector Arrays

Content Provider	IEEE Xplore Digital Library
Author	Kikuchi, Y. Ishii, K. Yamazaki, H. Matsuyama, S. Momose, G. Ishizaki, A. Kisaka, J. Kudo, T.
Copyright Year	2006
Description	Author affiliation: Graduate Sch. of Eng., Tohoku Univ., Sendai (Kikuchi, Y.; Ishii, K.)
Abstract	We are currently developing a small animal PET using CdTe detector arrays. Because of a semiconductor, the CdTe detector can be miniaturized to obtain a high spatial resolution of the PET. We examined the performance of the multi-strip CdTe detector array, which consists of 32 ch strips with detector size 1.2 times 1.15 times 4.5 $mm^{3},$ sensitivity for 511 keV annihilation photons, polarization for signal output and so on. To investigate the feasibility of ultra high spatial resolution of small animal PET by using the CdTe detector arrays, a prototype of small PET using the multi-strip CdTe detector arrays was manufactured, which consists of the two detector arrays faced each other by 100 mm and can be rotated by stepping motor. The measurement of spatial resolution was performed by a small phantom of acrylic cylinder with 3 cm diameter in which hot spots of $^{18}F$ with 0.5 mm diameter were placed with intervals of 2 mm, 1.5 mm and 1 mm. We obtained a high resolution of 0.9 mm FWHM. This results that the multi-strip CdTe detector array is enough to be used to a small high resolution PET.
Starting Page	2454
Ending Page	2457
File Size	2667734
Page Count	4
File Format	PDF
ISBN	1424405602
ISSN	10957863
DOI	10.1109/NSSMIC.2006.354408
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Animals Positron emission tomography Detectors Sensor arrays Spatial resolution Face detection Polarization Prototypes Manufacturing Performance evaluation
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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